Date: Fri, 8 Feb 2008 08:36:49 +0100 From: Ed Schouten <ed@fxq.nl> To: Pietro Cerutti <gahr@gahr.ch> Cc: FreeBSD Hackers <freebsd-hackers@freebsd.org> Subject: Re: uma_zcreate and number of items to create Message-ID: <20080208073649.GB94844@hoeg.nl> In-Reply-To: <47AB6B9E.1090605@gahr.ch> References: <47AB6B9E.1090605@gahr.ch>
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--7iMSBzlTiPOCCT2k Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable * Pietro Cerutti <gahr@gahr.ch> wrote: > Before starting to hack it, I would like to know what you think about > it. Do you find it useful or not? I was thinking about this as well, because my TTY hackery could also use this to preallocate cblocks to store characters from interrupts, but then you could also just keep a free list to store them. You need to allocate them anyway, so the space is already wasted. Using your own per-{device,object,etc} free list should even be faster, because uma probably has some per-zone spinlock, while you may not need the locking in your specific situation (i.e. another lock already protects it). --=20 Ed Schouten <ed@fxq.nl> WWW: http://g-rave.nl/ --7iMSBzlTiPOCCT2k Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (FreeBSD) iEYEARECAAYFAkesBpEACgkQ52SDGA2eCwVumgCfdfAsco9CiceyPOcSX5KYKyIW Pq0AniyerMLAYY1VOHaiFDaqTYtZi7r7 =Ura5 -----END PGP SIGNATURE----- --7iMSBzlTiPOCCT2k--
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